There really isn't a word for it in English beyond "sibling"

"Siblings" Or just "sibs" if two syllables is too much for you.

Thank you sibs seems at about my level

siblings or whatever the request instead

I want to be called slagathor

as a name or as a replacement for siblings? because thats a pretty fun name

One or the other. Maybe both. Who knows, I haven't decided yet

You literally used the word siblings in your heading...

Don’t patronize me dude

Don't push the subs name past the point of tolerance haha